Thank you Sur La Table in Pasadena! Espresso Maker is an air-pressure brewing. Air-pressure brewing shortens filtering time to 20 seconds, avoiding the bitterness of long processes like drip brewing. Very Japanese like coffee...h...Thank you Sur La Table in Pasadena! Espresso Maker is an air-pressure brewing. Air-pressure brewing shortens filtering time to 20 seconds, avoiding the bitterness of long processes like drip brewing. Very Japanese like coffee...hot stuff.